Brannon first appears in the U.S. registration record in 1934. Its popularity climbed over the following decades. In 1998, 158 babies received the name (ranked #909). Today it sits well outside the top 1,000 (around #4938), with roughly 23 babies named Brannon each year. Brannon has been declining in recent years. In total, around 4,810 babies have been registered with this name since 1880.